Slooooow network speed

My internet has been slow for the past few weeks. I thought they were throttling my speed, but then it was 1 Feb and the debt order was deducted from my account. I still had slow spped and logged a call on 2 Feb 2021. On 7 Feb 2021 my speed is still slow, of you can call 0.04Mbps slow. It is even slow than when you had dial-up. The support staff are no help. Always telling me the same thing. Take out the Sim card, hard reset the router and point it in the directing of the close tower. I tell them it doesn't work and they just tell me to do it again as if I am a idiot